task6.py

3.

from turtle import *

def square(size=50,rgb='blue'):
    pencolor(rgb)
    for i in range(4):
        fd(size)
        left(90)

def main():
    setup(800,600)
    speed(0)


    for i in range(10):
        square(80)
        left(36)

    hideturtle()
    done()

if __name__ == '__main__':
    main()

4.

from turtle import *

setup(800,600)
pencolor('yellow')

for i in range(10):
    for i in range(2):
        circle(80,90)
        left(90)

    right(36)

hideturtle()
done()

　　

 

5.

from turtle import *

speed(0)
setup(800,600)
bgcolor('white')
pencolor('gray')

angle=0
size=2

for i in range(10):
    for j in range(4):
        fd(size)
        angle +=72
        seth(angle)
        size +=5

hideturtle()
done()

　　

 

6.

from turtle import *
from random import random

def main():
    setup(800,600)
    speed(0)


    penup()
    goto(-100,0)
    pendown()
    for i in range(20):
        rgb = tuple(random() for i in range(3))
        color(rgb)
        begin_fill()

        fd(10)
        left(90)
        fd(20)
        left(90)
        fd(10)
        left(90)
        fd(20)
        left(90)
        fd(10)

        end_fill()

    hideturtle()
    done()

if __name__ == '__main__':
    main()